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The Big Bang Theory S2E18 poster

Watch The Big Bang Theory – Season 2 Episode 18: The Work Song Nanocluster

The Big Bang Theory • Season 2, Episode 18 • 20 min • 2007 • ⭐ 7.9/10 • Comedy

Cast: Jim Parsons , Kaley Cuoco , Johnny Galecki , Simon Helberg , Kunal Nayyar , Melissa Rauch , Mayim Bialik

Directors: Chuck Lorre , Bill Prady

Watch The Big Bang Theory – S2E18

Episode Overview

Penny's home business turns into a complete nightmare when Sheldon takes over.

Episode Navigation

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